ANDREW SOBEL is the author of nine acclaimed books including the international bestsellers Clients for Life and Power Questions. His work frequently appears in major publications such as The New York Times and the Harvard Business Review. His firm, Andrew Sobel Advisors, has attracted over 150 of the world's leading companies as clients, including Citigroup, Cognizant, Booz Allen Hamilton, Ernst & Young, Bain, and Grant Thornton. A former senior vice president and country chief executive for Gemini Consulting, he earned his MBA at Dartmouth's Tuck School.